Aluminum clamp

Abstract

The aluminum clamp comprises a first C-shaped clamp and a second C-shaped clamp, one end of the first C-shaped clamp and one end of the second C-shaped clamp are mutually hinged, a handle is hinged to the end, away from the hinged end, of the first C-shaped clamp, and a locking positioning groove is formed in the face, back to the first C-shaped clamp, of the end, away from the hinged end, of the second C-shaped clamp. The opening direction of the locking positioning groove is the same as that of notches of the first C-shaped clamp and the second C-shaped clamp; the device further comprises a force storage spring, the force storage spring comprises a positioning section matched with the locking positioning groove and a locking section matched with the hinge hole, and the two ends of the positioning section are provided with first pull rod sections which are bent and then extend in the direction of the center of the groove opening of the first C-shaped clamp and the center of the groove opening of the second C-shaped clamp. When the handle is close to the outer side wall of the first C-shaped clamp along the hinge point, the handle, the hinge hole and the locking positioning groove pass through a dead point position formed by three points and one line to reach a locking state. The utility model has the advantages of low production cost, convenient installation, compact structure and reliable fixation.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of clamps, in particular to an aluminum clamp. BACKGROUND

[0002] The clamp is a connecting device for connecting pipe fittings, valves and pipeline accessories with grooves, and is used for tightening the clamp between quick couplings. The existing clamp generally uses a metal wire as a hasp when being fixed, and the hasp is made to pass the dead point position when the handle is swung to achieve the tightening effect. However, the metal wire is generally straight-pulled, and the range of elastic deformation is small, which leads to the fact that the opening size of the clamp has an extremely limited adaptive range when being locked, thereby affecting the shock resistance and easily causing stress concentration of the quick coupling and breakage. Meanwhile, the overall stability is poor, and it is also difficult to quickly and accurately install the hasp in place in the blind state. SUMMARY

[0003] Based on the above problems, the utility model aims at providing an aluminum clamp which has low production cost, is convenient to install, has compact structure and is fixed reliably.

[0004] In view of the above problems, the following technical scheme is provided: an aluminum clamp, comprising a first C-shaped clamp and a second C-shaped clamp which are mutually hinged at one end, a handle being hinged at one end of the first C-shaped clamp away from the hinged end, a locking positioning groove being arranged on one side of the second C-shaped clamp away from the hinged end and facing away from the first C-shaped clamp, the opening direction of the locking positioning groove being the same as the groove opening direction of the first C-shaped clamp and the second C-shaped clamp; a hinge hole being arranged on the handle, the hinge hole being located on the side of the hinge point away from the locking positioning groove when the handle is close to the outer side wall of the first C-shaped clamp along the hinge point, and the hinge hole axis being parallel to the opening direction of the locking positioning groove; further comprising a force storage spring, the force storage spring comprising a positioning section matched with the locking positioning groove and a locking section matched with the hinge hole, the two ends of the positioning section being provided with first pull rod sections which are bent and extend towards the center of the groove opening of the first C-shaped clamp and the second C-shaped clamp, the two ends of the locking section being provided with second pull rod sections which are bent and extend towards the center of the groove opening of the first C-shaped clamp and the second C-shaped clamp, the first pull rod section and the second pull rod section being connected through an arc section, and the arc section being arranged along the outer side arc of the groove opening of the first C-shaped clamp and the second C-shaped clamp; the handle reaches the locked state after passing the dead point position formed by the three-point line of the hinge hole and the locking positioning groove when the handle is close to the outer side wall of the first C-shaped clamp along the hinge point.

[0005] In the structure, the positioning section and the locking section of the force storage spring are connected with the arc section through the first pull rod section and the second pull rod section, so that the elastic deformation allowance is formed between the included angle between the first pull rod section and the arc section and the included angle between the second pull rod section and the arc section, and the arc section can generate an elastic deformation amount by using the arc when the first pull rod section and the second pull rod section are subjected to a pulling force, so that the positioning section and the locking section maintain a wide elastic deformation range and the elastic locking force in the range is balanced, thereby meeting the anti-seismic performance and the size adaptation range of the pipeline connection; since the first pull rod section and the second pull rod section extend towards the center of the slot, the positioning section of the force storage spring can be guided and positioned by using the arc sections located on both sides of the first C-shaped clamp and the second C-shaped clamp when the positioning section is matched with the locking positioning slot, and the compactness of the size is also ensured.

[0006] The utility model further sets up, one end of second C-shaped clamp away from hinged end is equipped with middle slot, the middle slot is opened in the middle position of locking positioning slot length direction and divides locking positioning slot into two sections, positioning section is equipped with positioning sheath, positioning sheath is opposite with locking positioning slot, positioning sheath middle section outer wall is equipped with positioning shoulder, and positioning shoulder is located in middle slot.

[0007] In the structure, the positioning section is opposite and matched with the locking positioning slot through the positioning sheath, so that the contact between the two is more stable and the wear is reduced; meanwhile, the positioning shoulder matched with the middle slot can effectively ensure the center matching and provide a positioning reference for blind installation.

[0008] The utility model further sets up, positioning sheath and positioning shoulder are made of brass.

[0009] In the structure, brass has self-lubricating property, so that the wear between the two is reduced.

[0010] The utility model further sets up, a transition bushing is arranged between the outer wall of the locking section and the inner wall of the hinged hole.

[0011] In the structure, the transition bushing is used for protecting the hinged hole and can be replaced as a vulnerable part.

[0012] The utility model further sets up, the transition bushing is made of brass.

[0013] In the structure, brass has self-lubricating property, so that the wear between the parts is reduced.

[0014] The utility model further sets up, the center of the arc section is concentric with the center of the slot of the first C-shaped clamp and the second C-shaped clamp, and the radius of the arc section is greater than the radius of the slot of the first C-shaped clamp and the second C-shaped clamp.

[0015] In the clamping state, the arc section is adjacent to the pipeline, so that the compactness of the overall structure is realized.

[0016] The utility model further provides for, the handle is along the hinged point close to the first C shaped clamp outside lateral wall when its face to the first C shaped clamp outside lateral wall one side is equipped with the locking groove, the handle both sides are equipped with the outside locking hole of locking groove setting is passed through, the first C shaped clamp outside lateral wall is equipped with the locking lug of locking groove adaptation when the handle is along the hinged point close to the first C shaped clamp outside lateral wall, the locking lug is equipped with the inside locking hole of outside locking hole concentric setting, the outside locking hole and inside locking hole are inserted and connected locking through the locking pin.

[0017] In the above structure, the handle is locked by the locking pin in the locked state, avoiding accidental unlocking.

[0018] The utility model further provides for, the first C shaped clamp, second C shaped clamp and handle are all aluminium alloy or zinc alloy material integral die casting.

[0019] In the above structure, the first C shaped clamp, second C shaped clamp and handle can also adopt brass material.

[0020] The utility model further provides for, the first C shaped clamp, second C shaped clamp's slot mouth inside lateral wall is equipped with V type groove.

[0021] In the above structure, the V type groove is used for adapting with the flange of quick connector.

[0022] The utility model discloses the beneficial effects: the positioning section of force storage spring, locking section are connected with arc section through first pull rod section and second pull rod section, make the included angle between first pull rod section and arc section and the included angle between second pull rod section and arc section form the surplus of elastic deformation, simultaneously, arc section can produce elastic deformation amount by its arc when first pull rod section and second pull rod section are subjected to pulling force, therefore make the positioning section, locking section keep a wider elastic deformation range while guaranteeing that the elastic locking force in the range is more balanced, thereby satisfy the seismic resistance and size adaptation range of pipeline connection, because first pull rod section and second pull rod section extend to the center direction of slot, therefore when the positioning section of force storage spring adapts with locking positioning groove, can guide alignment by arc section located on both sides of first C shaped clamp and second C shaped clamp, also guarantee the compactness of size. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is the three-dimensional structure schematic diagram of the utility model in the locked state.

[0024] Figure 2 It is the three-dimensional structure schematic diagram of the utility model Figure 1 in the unlocked state.

[0025] Figure 3 It is the three-dimensional structure schematic diagram of the utility model in the unlocked state.

[0026] Figure 4 This is a first-person perspective three-dimensional structural diagram of the unlocked structure of this utility model.

[0027] Figure 5 This is a second-view three-dimensional structural diagram of the unlocked structure of this utility model.

[0028] The labels in the diagram have the following meanings: 10-First C-shaped clip; 101-Locking ear; 102-Inner locking hole; 11-Second C-shaped clip; 111-Locking positioning groove; 112-Center slot; 12-Handle; 121-Hinge hole; 122-Locking groove; 123-Outer locking hole; 13-Storage spring; 131-Positioning section; 1311-Positioning sleeve; 1312-Positioning shoulder; 132-Locking section; 1321-Transition bushing; 133-First pull rod section; 134-Second pull rod section; 135-Arc-shaped section; a-Groove; b-V-shaped groove. Detailed Implementation

[0029] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this utility model, but are not intended to limit its scope.

[0030] refer to Figures 1 to 5 ,like Figures 1 to 5 An aluminum clamp shown includes a first C-shaped clamp 10 and a second C-shaped clamp 11 hinged together at one end. A handle 12 is hinged to the end of the first C-shaped clamp 10 away from the hinge end. A locking positioning groove 111 is provided on the side of the second C-shaped clamp 11 away from the hinge end and facing away from the first C-shaped clamp 10. The opening direction of the locking positioning groove 111 is the same as the groove opening a of the first C-shaped clamp 10 and the second C-shaped clamp 11. A hinge hole 121 is provided on the handle 12. When the handle 12 is close to the outer wall of the first C-shaped clamp 10 along the hinge point, the hinge hole 121 is located on the side of the hinge point away from the locking positioning groove 111. The axis of the hinge hole 121 is parallel to the opening direction of the locking positioning groove 111. It also includes a storage spring 13, which includes components adapted to the locking positioning groove 111. The positioning section 131 and the locking section 132 adapted to the hinge hole 121 are provided. The positioning section 131 has a first pull rod section 133 at both ends, which is bent and extends towards the center of the slot a of the first C-shaped clamp 10 and the second C-shaped clamp 11. The locking section 132 has a second pull rod section 134 at both ends, which is bent and extends towards the center of the slot a of the first C-shaped clamp 10 and the second C-shaped clamp 11. The first pull rod section 133 and the second pull rod section 134 are connected by an arc section 135. The arc section 135 is set to fit the outer arc of the slot a of the first C-shaped clamp 10 and the second C-shaped clamp 11. When the handle 12 is close to the outer wall of the first C-shaped clamp 10 along the hinge point, it reaches the dead point position formed by the hinge hole 121 and the locking positioning groove 111 after passing through the three points in a straight line (e.g.,Figure 1 The first C-shaped clamp 10 and the second C-shaped clamp 11 are connected by the elastic locking spring 13.

[0031] In the structure, the positioning section 131 and the locking section 132 of the elastic locking spring 13 are connected with the arc section 135 through the first pull rod section 133 and the second pull rod section 134, so that the elastic deformation allowance is formed between the included angle between the first pull rod section 133 and the arc section 135 and the included angle between the second pull rod section 134 and the arc section 135, and the arc section 135 itself can generate an elastic deformation amount by using the arc when the first pull rod section 133 and the second pull rod section 134 are subjected to a pulling force. Therefore, a relatively wide elastic deformation range is maintained between the positioning section 131 and the locking section 132, and the elastic locking force in the range is relatively balanced, so that the anti-seismic performance and the size adaptation range of the pipeline connection are met. Since the first pull rod section 133 and the second pull rod section 134 extend towards the center of the slot a, the positioning section 131 of the elastic locking spring 13 can guide the alignment when being fitted with the locking and positioning slot 111 by using the arc section 135 located on both sides of the first C-shaped clamp 10 and the second C-shaped clamp 11, and the compactness of the size is also ensured.

[0032] In the embodiment, one end of the second C-shaped clamp 11 away from the hinged end is provided with a centering slot 112, the centering slot 112 is arranged at the middle position of the length direction of the locking and positioning slot 111 to divide the locking and positioning slot 111 into two sections; the positioning section 131 is provided with a positioning sheath 1311, the positioning sheath 1311 abuts against the locking and positioning slot 111; the outer wall of the middle section of the positioning sheath 1311 is provided with a positioning shoulder 1312, and the positioning shoulder 1312 is located in the centering slot 112.

[0033] In the structure, the positioning section 131 abuts against and fits with the locking and positioning slot 111 through the positioning sheath 1311, so that the contact between the two is more stable, and the wear is also reduced; meanwhile, the fitting of the positioning shoulder 1312 and the centering slot 112 can effectively ensure the centering fitting, and provide a positioning reference for blind installation.

[0034] In the embodiment, the positioning sheath 1311 and the positioning shoulder 1312 are integrally processed from brass.

[0035] In the structure, the brass has self-lubricating property, and the wear between the two is reduced.

[0036] In the embodiment, the transition bushing 1321 is arranged between the outer wall of the locking section 132 and the inner wall of the hinged hole 121.

[0037] In the structure, the transition bushing 1321 is used for protecting the hinged hole 121, and can be replaced as a vulnerable part.

[0038] In the embodiment, the transition bushing 1321 is made of brass.

[0039] In the structure, the brass has self-lubricating property, reducing the wear between the components.

[0040] In the embodiment, the center of the circular arc of the arc segment 135 is concentric with the center of the notch a of the first C-shaped clamp 10 and the second C-shaped clamp 11, and the radius of the circular arc of the arc segment 135 is greater than the radius of the notch a of the first C-shaped clamp 10 and the second C-shaped clamp 11.

[0041] In the structure, the arc segment 135 can be close to the pipeline in the clamped state, so that the compactness of the overall structure is realized.

[0042] In the embodiment, when the handle 12 is close to the outer side wall of the first C-shaped clamp 10 along the hinge point, a locking groove 122 is arranged on the side of the handle 12 facing the outer side wall of the first C-shaped clamp 10, and outer locking holes 123 are arranged on both sides of the handle 12 and penetrate the locking groove 122; when the handle 12 is close to the outer side wall of the first C-shaped clamp 10 along the hinge point, the outer side wall of the first C-shaped clamp 10 facing the handle 12 is provided with a locking lug 101 matched with the locking groove 122, and the locking lug 101 is provided with an inner locking hole 102 concentrically arranged with the outer locking hole 123; the outer locking hole 123 and the inner locking hole 102 are locked by a locking pin (not shown in the figure).

[0043] In the structure, the handle 12 is locked by the locking pin (not shown in the figure) in the locked state, avoiding accidental unlocking.

[0044] In the embodiment, the first C-shaped clamp 10, the second C-shaped clamp 11 and the handle 12 are integrally die-cast by aluminum alloy or zinc alloy material.

[0045] In the structure, the first C-shaped clamp 10, the second C-shaped clamp 11 and the handle 12 can also be made of brass material.

[0046] In the embodiment, the inner side wall of the notch a of the first C-shaped clamp 10 and the second C-shaped clamp 11 is provided with a V-shaped groove b.

[0047] In the structure, the V-shaped groove b is used to match the flange of the quick connector.

[0048] The utility model discloses the beneficial effect: the positioning section 131 of force storage spring 13, locking section 132 are connected with arc section 135 through first pull rod section 133 and second pull rod section 134, make the included angle between first pull rod section 133 and arc section 135 and the included angle between second pull rod section 134 and arc section 135 form the surplus of elastic deformation between, simultaneously arc section 135 itself can utilize its arc elasticity deformation amount when being subjected to the pulling force of first pull rod section 133 and second pull rod section 134, therefore make the positioning section 131 between locking section 132 keep a wider elastic deformation range while guaranteeing the elastic locking force in the range is more balanced, to meet the seismic resistance and size adaptation range of pipeline connection, because first pull rod section 133 and second pull rod section 134 extend to the center direction of slot a, therefore the positioning section 131 of force storage spring 13 can utilize the arc section 135 located first C-shaped clamp 10 and second C-shaped clamp 11 two sides and guide alignment when adapting with locking positioning groove 111, also guarantee the compactness of size.

[0049] The above only is the preferred implementation of the utility model, should point out, for the ordinary skill in the art of the present technology, on the premise of not departing from the technical principle of the utility model, can also make a number of improvements and variations, the above-mentioned improvement and variation of these assumptions also should be regarded as the protection scope of the utility model.

Claims

1. An aluminium clamp comprising first and second C-shaped clamps hingedly connected at one end, characterised in that: The first C-shaped clamp is hinged with a handle at one end away from the hinged end, and the end of the second C-shaped clamp away from the hinged end is provided with a locking positioning groove on the side facing away from the first C-shaped clamp, and the opening direction of the locking positioning groove is the same as the direction of the slot of the first C-shaped clamp and the second C-shaped clamp; the handle is provided with a hinge hole, and when the handle is close to the outer side wall of the first C-shaped clamp along the hinge point, the hinge hole is located on the side away from the locking positioning groove, and the axis of the hinge hole is parallel to the opening direction of the locking positioning groove; further comprising a force storage spring, the force storage spring comprises a positioning section matched with the locking positioning groove and a locking section matched with the hinge hole, the two ends of the positioning section are provided with first pull rod sections extending to the center of the slot of the first C-shaped clamp and the second C-shaped clamp after being bent, the two ends of the locking section are provided with second pull rod sections extending to the center of the slot of the first C-shaped clamp and the second C-shaped clamp after being bent, the first pull rod section and the second pull rod section are connected by an arc section, and the arc section is arranged in the same arc as the outer side of the slot of the first C-shaped clamp and the second C-shaped clamp; the handle reaches the locking state after passing through the dead point position formed by the three-point line of the hinge hole and the locking positioning groove when the handle is close to the outer side wall of the first C-shaped clamp along the hinge point.

2. An aluminum clamp as defined in claim 1, wherein: The end of the second C-shaped clamp away from the hinged end is provided with a center dividing groove, and the center dividing groove is opened at the middle position of the length direction of the locking positioning groove to divide the locking positioning groove into two sections; the positioning section is provided with a positioning sleeve, and the positioning sleeve is in contact with the locking positioning groove; the outer wall of the middle section of the positioning sleeve is provided with a positioning shoulder, and the positioning shoulder is located in the center dividing groove.

3. An aluminum clamp as defined in claim 2, wherein: The positioning sleeve and the positioning shoulder are integrally processed from brass.

4. An aluminum clamp as defined in claim 1, wherein: A transition bushing is arranged between the outer wall of the locking section and the inner wall of the hinge hole.

5. An aluminum clamp as defined in claim 4, wherein: The transition bushing is made of brass.

6. An aluminum clamp as defined in claim 1, wherein: The center of the circular arc of the arc section is concentric with the center of the slot of the first C-shaped clamp and the second C-shaped clamp, and the radius of the circular arc of the arc section is greater than the radius of the slot of the first C-shaped clamp and the second C-shaped clamp.

7. An aluminum clamp as defined in claim 1, wherein: When the handle is close to the outer side wall of the first C-shaped clamp along the hinge point, the side of the handle facing the outer side wall of the first C-shaped clamp is provided with a locking groove, and the handle is provided with an outer locking hole penetrating through the locking groove; the outer side wall of the first C-shaped clamp facing the handle is provided with a locking lug matched with the locking groove when the handle is close to the outer side wall of the first C-shaped clamp along the hinge point, and the locking lug is provided with an inner locking hole concentrically arranged with the outer locking hole; the outer locking hole and the inner locking hole are connected by a locking pin.

8. An aluminum clamp as defined in claim 1, wherein: The first C-shaped clamp, the second C-shaped clamp and the handle are integrally pressure cast from aluminum alloy.

9. An aluminum clamp as defined in claim 1, wherein: The inner side wall of the slot of the first C-shaped clamp and the second C-shaped clamp is provided with a V-shaped groove.

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